Beyond the Build

Construction Trends

Reducing Light Pollution

We recently completed an adaptive reuse office project in an area that is both urban and residential. The owner wanted to ensure that site lighting was functional, attractive and minimally intrusive. We ended up going with the Limelight outdoor lighting control system by Lutron using LED fixtures by Cree.

Limelight is a wireless lighting system that can be controlled, adjusted and managed remotely by a smart device. As with many smart building features, the end result saves energy and enhances facility safety. In our case, lights are programed to dim to 50% after 9:00 pm. There is an area of lights that are visible from a nearby residence, so those are programed to dim to 25%, minimizing any effect on the neighbors.

A few benefits we are seeing from using this type of system:

  • HDM (High Density Mesh) wireless technology ensures extremely reliable, long-range performance in outdoor environments. A node in every fixture provides motion sensing, daylighting, and power measurement capability.
  • We can schedule for predictable events, like disabling motion sensors during work hours.
  • Using this low-impact lighting reduces light pollution.

It’s interesting the way “wins” sometimes come in different ways and for different reasons. All good.


Merrill Stewart Jr.

Merrill Stewart is Founder and CEO of The Stewart/Perry Company, a commercial building contractor based in Birmingham.